The Lenovo ThinkPad Helix has been a known entity for some time, first showing up on the company's Israeli website and more recently stopping by the FCC with AT&T LTE in tow. The device is no longer an enigma, as Lenovo is pulling back the curtain on the 11.6-inch convertible Ultrabook, which will go on sale in late February for $1,499 and up.

Like the famously flippable ThinkPad Yoga, the Helix can be used in several different positions. Tablet and Ultrabook modes are a given, but users can also flip the tablet 180 degrees and snap it back in to the base, essentially providing a stand for using the device as a slate. In addition to supporting touch input, the Helix offers a bundled pen (complete with a slot for storing) for tapping away at the 1080p Gorilla Glass display. Speaking of the panel, it boasts IPS technology -- and Lenovo says it's "the brightest screen in the ThinkPad brand portfolio."

Along with the just-introduced ThinkPad Edge E431 and E531, the Helix sports a new trackpad that forgoes the secondary buttons meant to be used with the TrackPoint. Instead, these buttons are built into the clickpad, though the pointing stick is still on board. We imagine this change will upset many ThinkPad devotees, but given that we haven't seen a final production unit, we're not ready to pass judgement on the update.

The highest-end configuration will run a Core i7 processor, and Lenovo says you can expect up to 10 hours of battery life. Other specs include a 5-megapixel rear camera and a 2-MP front-facing shooter, NFC for tapping to share and -- as expected -- LTE connectivity. The tablet weighs 1.8 pounds on its own, and the whole Ultrabook comes in at under four. Take a closer look at this convertible in our hands-on gallery.